512421644061 has 24 divisors (see below), whose sum is σ = 741531155040. Its totient is φ = 340983972000.

The previous prime is 512421644041. The next prime is 512421644171. The reversal of 512421644061 is 160446124215.

512421644061 is a `hidden beast` number, since 5 + 1 + 2 + 4 + 2 + 1 + 644 + 0 + 6 + 1 = 666.

It is not a de Polignac number, because 512421644061 - 2⁹ = 512421643549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512421644041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33925411 + ... + 33940511.

It is an arithmetic number, because the mean of its divisors is an integer number (30897131460).

Almost surely, 2^512421644061 is an apocalyptic number.

It is an amenable number.

512421644061 is a deficient number, since it is larger than the sum of its proper divisors (229109510979).

512421644061 is a wasteful number, since it uses less digits than its factorization.

512421644061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21817 (or 21814 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

Adding to 512421644061 its reverse (160446124215), we get a palindrome (672867768276).

The spelling of 512421644061 in words is "five hundred twelve billion, four hundred twenty-one million, six hundred forty-four thousand, sixty-one".